Capping-die.



C. W. SHEVLINl CAPPING DIE.

APPLICATION FILED DEC-22| I9I3. RENEWED JULY 3 I9I6.

Patented Mar. 13, 1917.

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- c. W. SHEVLIN.

CAPPING DIE.

PLlcATloN FILED Dec. 22. 1913. RENEwEn JULY 3 als Patented Mar. 13, 1917.

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LZ MfS/SES? Mame' i AApplication led December 22, 1913, Serial N o. 808,061.

UNITED sTATns PATENT OFFICE.

CHARLES W. sHnvLIN, or CHICAGO, ILLINOIS, AssIoNon To CLIMAX CONTAINER COMPANY, 0F CHICAGO,

ILLINOIS,-

A CORPORATION OF DELAWARE.

CAPPINGr-DIE.

To all 'whom z't may conem: i Be it known that I, CHARMS W. SHEVLIN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Capping-Dies, of which the following isa specification.

My present invention relates to a tool orl die for the capping of cylindrical cartons or paper containers, and has for its main ob` ject the provision of elements and? theirarrangement and cooperation so as to uniformly and adequately-perform the operation of capping a container.'

Another object of my invention is the provision of 'means for centering and shaping the container previous to' thetcapping operation.V 1"

- similar reference characters lines, and

Y Still another and important object is the provision of meansl wherebythe container: when held in this centered relation to the dies, is also protected from the force by which the cap is inserted.

I attain the above objects by the device illustrated in the following views, in `which parts throughout of a well known form lof punch equipped with a series of my plurality of containers press, shown Cappmg dies, in' place ready Fig. 2 1s a fragmental vertical section through the dies, the plunger and the top portion of a capping blank Abeing shown in i place prior to the commencement of the operation of capping the container;

Stroke of the plunger;

Fig. 3 is a view. similar to' Fig. 2, illus-' 'v trating the -first movement or downward Fig. 4 is a view similar to Figu3,l showing the result of the finished downwardstroke of the plunger, and Y Fig. 5 is a view similar to Fig. 4 showingthe starting of the return or upward stroke.`

In carrying out my invention I employ 'a punch press of a well known design, compoed respectively of side frame members 6, ha ing inwardly facing vertical channels 7, adapted to act as guideways for a plunger 8, actuated by the well known form of a crank shaft '9 and connecting' rod, 10.

Specification of Letters Patent.

referto similar Figure 1 is a-frfagmental front elevation a container being shown in full l.one at each end respectively, poses hereafter to be set forth.

sion of the springs 18,

Patented Mar. 13, 191 '7. nenewea July a, 1916. serial No. 107,466.

y vMounted at intervals along the' bottom edge of the member 8,

are a. series of plunger dles 11. l

4Traveling' in the same channels 7 below I' the plunger 8, is a forming die member 12, having a series of vertical apertures 13 with which the plungers 11 are adapted to register. The lower edges of these apertures 13, are beveled outwardly or flared, and where this beveled portion 14- contacts the aperture 13, there is provided an annular shoulder 15, approximately the width of the thickness of the wall of the container. At the u pper side ortop of each aperture revso spect1vely,..is provided a groove 16, somewhat larger-.in diameter than 'the aperture,

and into which are adapted to be fed the capping blanks 1.',7. Said die member 12 is yleldingly supported at its outer ends by coiled expansion springs 18,'bearing against an arm 6a of the frame 6; and the downward movementof this ldie 12 is limited by stops or set screws 19, also supported by said arms 6a, and springs 18. v p

' A cross piece or table, 20, in line with the dies 11 and 12, and a suitable distance below'the ldie 12 (approximately the height of a container) is supported by or may be integral with the frame 6. This table is provided with means (not shown) for receivabout which are coiled the "ing containers 21,l andl centerinr each below their respective apertures and dies.

plungers- 22 project belowv f Spring actuated the bottom edge of aforesaid plunger die 8, and for pur- 'lhe operation Yof my die is as follows:

First, the containers are placed on the table 20 'as shown in Fig. 1, and the cap blanks 17 are placedin their respective grooves 16, then the plunger 8 is the die l2 on its downward stroke, will draw it in shape and to its true center, by means of the tapering wall 14, as clearly shown,

, at the saine and the stops 19 are s0 adjusted, as to stop the die 12 at the point when-the 'top of the container comes',` in contact with the shoulder or annular ledge 15, which relieves any and allpressure from the walls of the container.

The plunger 11 continues on its downward stroke, and as it is smaller in diameter than the .aperture 13v by the thickness of the cap 17, it' forces said cap down, forms it in a cup shape, and forces it into the container, `time the plunger 22 strikes the upper surface of the die l12, and'is compressed. Fig. 4 shows the dies in this, position. Y

The plunger 11 now starts to return, and as it is drawn upward, the spring pressed plunger 22 bearing against the surface of the die 12 prohibits it from following untilthe plunger is well withdrawn from the cap. Fig. 5 shows the dies'in this position. From here the plunger returns to the kposition shown in Figs. 1 and 2, thus allowing the expansion spring l18 to raise thedie 12, thus leaying the capped containers to be removed and the operation repeated'.

Having thus described my invention what I claim as new and desire lto secure by Letters Patent, is i 1. A capping die, comprising a mobile plunger die, a forming die .adapted to receive said plunger diesaid formingdie having means provided-therein' for truing the shape of the container to be capped l'and for securing said container in trued position during the capping operation, and a spring pressed plunger adapted to be compressed against the surface of said receiving die when said plunger die is in its eXtreme lower position, for the purpose of retardingsaid receiving die until said plunger die is withdrawn upwardly and well without the cap.

2. A capping die, comprising a mobilel plunger die, a relatively movable receiving die, said receiving die 'having means provided therein for truing theY shape of the container to be capped, and for securing said container in trued position during the capping operation, and means for relieving all the force of said operation from the walls of the said container, and a spring pressed plunger adaptedto be compressed against the surface of said receiving die when said plunger die is in its eXtreme lower position, for the purpose of retarding said receiving die until said plunger die is withdrawn upwardly and well without the cap.

.3. A capping die, plunger die, a. relatively movable receiving and forming die, last said die having an outwardly flaring taper on its under side, an

vannular shoulder at the intersection. of said taper and the innenwall of last said die, and an annular groove around said inner wall on the upper surface of last vsaid receiving die, and a spring pressed plunger adapted to be compressed against the surface of said reer die is withdrawn upwardly and well without theV cap. n

In'testimony whereof I aiiX my signature in the presence of two witnesses.

comprising a mobile` 'ceiving die when saidk plunger die is lin itsv lextreme lower position,

for` the purpose of t, ,retarding said receiving die until said plun- 

